<div>
  <h4>用户中心</h4>
  <ul>

    <li><a routerLink="course/1" routerLinkActive="active">我的课程</a></li>
    <li><a [routerLink]="['course',1,{username:'haha',age:12}]" [queryParams]="{a:1,b:2}" routerLinkActive="active">我的课程2</a></li>
    <li><a routerLink="money" routerLinkActive="active">我的金币</a></li>
    <li><a routerLink="order" fragment="order-item-10" routerLinkActive="active">我的订单</a></li>
  </ul>
  <div>
    <input type="text" #input />
    <button type="button" (click)="jumpCourse(input.value)">跳转课程</button>
  </div>
  <router-outlet></router-outlet>
</div>
